A115573 Array read by rows: row n (>= 1) gives the Betti numbers for the n-th element of the Weyl group of type A_5 (in Goresky's standard ordering).

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3

Offset

1,13

Comments

The array has 720 rows.

Links

Table of n, a(n) for n=1..99.

Mark Goresky, Tables of Kazhdan-Lusztig polynomials

Example

Array begins:
1
1 1
1 1
1 1
1 1
1 1
1 2 1
1 2 1
1 2 1

Crossrefs

Cf. A115570-A115583.

Sequence in context: A131534 A061347 A115579 * A152851 A152849 A115578

Adjacent sequences: A115570 A115571 A115572 * A115574 A115575 A115576

Keyword

nonn,fini,tabf

Author

Roger L. Bagula, Mar 04 2006

Status

approved